IBM XL C/C++ Compilers: Difference between revisions

Revision as of 21:13, 8 January 2024

Revision as of 15:46, 24 February 2024

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The XL compilers on AIX have delivered leadership scores in the [[Standard Performance Evaluation Corporation|SPEC]] CPU2000 and CPU2006 benchmarks, in combination with specific IBM POWER system processor announcements, for example, SPEC CPU2006 Floating Point<ref>[http://www.spec.org/cpu2006/results/res2010q2/#SPECfp|SPEC CPU2006 Floating Point]</ref> score of 71.5 in May 2010 and <ref>[http://www.spec.org/cpu2000/results/res2006q3/ SPEC CPU2000 Floating Point]</ref> score of 4051 in August 2006.

Current versions of XL C/C++ for AIX (1617.1) and XL C/C++ for Linux (16.1.1), are based on open-source [[Clang]] front end (part of the Clang/LLVM open source project).{{citation-needed|date=October 2021}} They provide support for C11, C++03, C++11, and C++14. In particular, XL C/C++ for AIX 17.1.0 is based on LLVM Clang 13.<ref>[https://www.ibm.com/docs/en/openxl-c-and-cpp-aix/17.1.0?topic=migration-migrating-new-llvm-clang-compiler-infrastructure Migrating to the new LLVM and Clang compiler infrastructure]</ref>

A new monthly pricing option is offered in XL C/C++ for AIX 16.1 and XL Fortran for AIX 16.1 to provide more flexibility for cloud-based use cases. This pricing model is on a term or subscription basis, with Software Subscription and Support included.